a-be a-fu aaaa aaab aaae aaaf aaar aaba aabb aaea aafa aafb aaff aage aaoe aaoo aara aare aaro aaru abaa abab abae abaf abag abar abau abb- abba abbb abbe abbo abbr abee aber abff aboa abob abof aboo abor abou abra abro abua abue abuf abug aeaf aeer aega aer- aera aero afaa afao afar afee afer affa affo afgf afoa afoe afog afoo afor afr- afra afre afro afru afua afue ag-o agag agao agar agau agba agbo agea agee ager agfa agga agge aggu agob agog agoo agou agra agre agro agua ague agur aoba aoeu aora aorb aouf arab arae araf arag arar arau arba arbe area aree aref areg areo areu arfa arfb arff arfu arga argb arge argo aroa arob aroe aroo aror arr- arra arre arrg arro arrr arru arua arub arue arug auaa aube auer aufe auga auge aur- aura aure auro auug baaa baaf baar baba babb babe babo babr babu baer baff bafo baga bage bagg bago bar- bara barb bare barf barg baro barr baru bau- bauf baug baur bbau bbbb bbeb bbga bbrg beaf beag bear beau beba bebb bebe bebo beeb beef beeg beer befa befe beff befo bega begg bego begu beo- beof beor bera bere berg bero berr beru beur bfgf boab boag boar boba bobb bobe bobo bobu boea boee boef boeo boer bofa bofe boff bofu boga boge bogg bogo boob booe boof boog boor bor- bora bore borf borg boro borr boru boua boue bouf bour brab brae braf brag brao brau brea breb bree bref breg breo brer brfu broa brob broe brog broo bror brou brrr brue brug buar buba bubb bube bubo bubu buea buer bueu bufe buff bufo bufr buga buge bugg bugo bur- bura burb bure burg buro burr buru eaaf eaba eafb eaga eage eara earb eare earo ebba ebbo ebbr eber eboe eboo ebor ebro ebru ebur eeea eeee eefa eefe eega eera eerg eero ef-g efab efbr efeo effa efor efua egaa egae egao egar egba egbe egbu egea egee eger egfr eggb egge eggo ego- egor egra egre eora eore eraf erau erba erbb erbe ereb erer erg- erga ergg ergo erob eroe eroo erra erre erro erua erub erur euba euer euge eur- eura eure euro faaa faba fabe fabo fabu faeb fafa fafe faff fafg fafo fage fagg fago fagu fara farb fare farg faro farr faru faue faur fbar feaf fear feba febo feeb feer fefe feff fefo fege fegg feof fera ferb fere fero ferr feru ffar ffee ffff ffrr foaf foar foba foer fofo foge fogg fogo foof for- fora forb fore forg foro forr foua foug four frab frae frag frau frea free freo frob froe frog frou frub frue frug fuar fubb fubu fuff fufu fuga fuge fugo fugu fuor fur- fura fure furg furo furr gaar gaba gabb gabe gabo gabr gabu gaea gaer gafa gafb gaff gaga gage gagg gago gagu gara garb gare garf garg garo garr gaua gaub gaue gaur gbag gbbo geab gear geba gebe geer gefe gege gegg gego geo- geof geog gera gerb gere gero geru geue gfer gffa gfoa gfor ggfg gggg goaf goar goba gobe gobo goef goer gofe goff gofr gofu goga gogo goof goog goor gora gorb gore gorf gorg goro gorr gou- gouf goug gour grab grae graf grau grbr grea greb gree gref greg greu grfa grob grof grog groo gror grou grrr grua grub grue gruf grug grur guaa guag guao guar guba gubb gubu guer gufa guff guga gugb guge gugg gugu gura gurb gure gurg guro gurr guru o-eo oaau oaer oafo oara oare obba obbo obea ober oboe obor obra obre obro oegb oera oere oeuf ofer off- offa offe offo offr offu ofgo ofor ofra ofre ogae ogar ogb ogba ogbe ogea ogee oger ogfr ogge ogoa ogog ogou ogra ogre ogro ooaa ooba oobe ooer ooff oooo oora oore orab orae orao orar orba orbb orbe orbo orbu ore- orea oreb oreg oreo orer orfe orff orfu orga orge orgo oro- oroe orof oror orra orro orub ouea ouer oufe ouff ouge our- oura oure ouro ouu- raab raaf raag raba rabb rabe rabo rabu raef raeg raer rafa rafe raff raga rage ragg rago ragu raob rara rarb rare rarf raro raua raub raue rauf rbaf rbbb rbbr rea- reae reaf reao rear reau reba rebb rebe rebo rebu reeb reef refe reff refg refr refu rega rege rego regr regu reof reog reou rera rere rerg rero reru reue reuf reuu rfae rfef rgba rgbe roab roaf roag roar rob- roba robb robe robo robu roea roeg roer rofe roff rofo roga roge rogg rogo roob roof roog roor rora rore roro roru roua roub roue rouf rrrr ruag ruba rubb rube rubu ruer rufa rufe ruff rufo ruga ruge rugg rura rure ruro ruru uafa uaru uaua ubar ubba ubbe ubbo uber ubra ueba uefa ufag ufer uffa uffe ufra ugab ugao ugar ugeo uggo ugra ugro ugur uguu uofa uofg uofo uor- uore urao urau urba urbe ure- urea urfa urfe urff urga urge urgu uro- uroa uroo urra urre urur uuuu